Mantaflow. Bake Mesh does nothing
No mesh just bounding box.
Isn't that because you have set under
Object Properties &gt; Viewport Display &gt; Display as &gt; Bounds?


BTW - What happened to me (when I tried to confirm your issue) is that mesh was generated just around particles. In that case - Save your file first.
Under 2.92 if you change Resolution, Simulation method or probably any parametr which restarts cache should solve it as well.
In 2.83 LTS it was't even possible run simulation without saving a file.